BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 24, Problem 3S
How does horizontal gene transfer (HGT) complicate phylogenetic analysis?
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Why do you suppose that horizontal gene transfer is more prevalent in single-celled organisms than in multicellular organisms?
5) Which mutation would NOT cause a change in an organism's phenotype?
A) TAT becomes TGT
B) TAT becomes TAC
C) TAT becomes TAA
D) Any change in the DNA sequence results in a change in an organism's phenotype
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a) What is a phylogenetic tree?
b) What is a branch point?
c) What are sister taxa?
d) What is a ‘rooted’ phylogenetic tree?
Chapter 24 Solutions
BIOLOGY
Ch. 24.1 - Prob. 1LOCh. 24.1 - Prob. 2LOCh. 24.1 - Prob. 3LOCh. 24.2 - Prob. 1LOCh. 24.2 - Prob. 2LOCh. 24.2 - Prob. 3LOCh. 24.2 - Explain why genome size and genome number do not...Ch. 24.3 - Define the terms segmental duplication, genome...Ch. 24.3 - Prob. 2LOCh. 24.4 - Prob. 1LO
Ch. 24.4 - Prob. 2LOCh. 24.5 - Prob. 1LOCh. 24.5 - Prob. 2LOCh. 24.5 - Prob. 3LOCh. 24 - Prob. 1DACh. 24 - Prob. 1IQCh. 24 - Prob. 2IQCh. 24 - Prob. 3IQCh. 24 - Humans and pufferfish diverged from a common...Ch. 24 - Prob. 2UCh. 24 - Prob. 3UCh. 24 - Homologous genes in distantly related organisms...Ch. 24 - All of the following are believed to contribute to...Ch. 24 - What is the fate of most duplicated genes? a. Gene...Ch. 24 - Chimp and human DNA whole-genome sequences differ...Ch. 24 - Prob. 2ACh. 24 - Analyze the conclusion that the Medicago...Ch. 24 - Analyze why an herbicide that targets the...Ch. 24 - The FOX2 gene is associated with speech in human....Ch. 24 - One of the common misconceptions about sequencing...Ch. 24 - How does horizontal gene transfer (HGT) complicate...
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- What is tagmatization? Which Phyla do we find it in?arrow_forwardWhat is horizontal gene transfer? What are the three mechanisms for this to occur in bacteria? What are the components needed for the processes of transformation, conjugation, and transduction? How does each process occur? What genes are involved in each process? How do generalized and specialized transduction differ? What is the end result of each? What is recombination? What is the importance to bacteria & archaea? What are the two types of recombination? What are the details of each type? What components are needed for each type?arrow_forwardWhat is horizontal gene transfer?arrow_forward
- Compare genome size, gene number, and gene density (a) in the threedomains and (b) among eukaryotes.arrow_forwardWhat is horizontal gene transfer and how might it take place?arrow_forwardWhich of the following is termed as conserved gene order? a) Microarray b) Ortholog c) Synteny d) Paralogarrow_forward
- When constructing a phylogenetic tree, what problem would horizontal gene transfer pose?arrow_forwardHow does recombination in bacteria differ from recombination in eukaryotes? 1) Recombination does not occur in prokaryotes 2) Only the plasmid DNA goes through recombination in prokaryotes 3) Sister chromatids, not homologous chromosomes, exchange information during recombination in prokaryotes 4) A portion of DNA from genome is replaced with homologous DNA from another strain of bacteria.arrow_forwardWhat is a taxonomic key?arrow_forward
- Define horizontal gene transfer. What problems does it cause for evolutionary biologists?arrow_forwardHow can horizontal gene transfer influence evolution? Would you be able to detect it using phylogeny? What about horizontal gene transfer makes reading bacterial trees difficult?arrow_forwardThe following two sequences represent the same gene from two different species: Assume that all changes in the third position are synonymous and all in the first and second positions are nonsynonymous. a) How many synonymous sites (positions) are there in the gene? b) How many nonsynonymous sites (positions) are there in the gene? c) How many synonymous substitutions are there between species? d) How many nonsynonymous substitutions are there between species? e) What is the dN/dS ratio? f) What does the dN/dS ratio tell you about the evolution of this sequence? Finally, It has been hypothesized that population size affects genome size. What is the proposed relationship? How can it be explained?arrow_forward
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